Leave these fields empty (spam trap):
Name
You can leave this blank to post anonymously, or you can create a Tripcode by using the format Name#Password
Subject
Comment
[i]Italic Text[/i]
[b]Bold Text[/b]
[spoiler]Spoiler Text[/spoiler]
>Highlight/Quote Text
[pre]Preformatted & Monospace Text[/pre]
[super]Superset Text[/super]
[sub]Subset Text[/sub]
1. Numbered lists become ordered lists
* Bulleted lists become unordered lists
File

Sandwich


420chan is Getting Overhauled - Changelog/Bug Report/Request Thread (Updated June 12 [TaimaTV Update])
What's your power level? Ignore Report View Thread Reply
William Drenkingold - Thu, 01 Dec 2016 01:21:19 EST ID:I4oaqfW8 No.15281
File: 1480573279507.jpg -(72258B / 70.56KB, 300x567) Thumbnail displayed, click image for full size. 72258
I'm new to this site and it struck me as pleasantly surprising that there's a whole set of science&math boards. I am however rather skeptical about the average level of education here, so let's make a little survery:

  1. Age
  2. Degree
  3. Specialty
  4. Dream job/profession
  5. Plans for the near future and long term strategy
17 posts and 4 images omitted. Click View Thread to read.
>>
Phineas Chacklestetch - Sun, 09 Apr 2017 02:42:19 EST ID:vrOFV9fT No.15463 Ignore Report Reply
>>15423
>>15424

This. If you get admitted you should get a teaching position with a survival wage. I am paid 20,000$ a year with tuition and health insurance free, and 100 students.

I could get more if I were to quit early and get a masters degree
>>
Fuck Billingfoot - Wed, 19 Apr 2017 19:41:06 EST ID:oXSM8l4D No.15476 Ignore Report Reply
1492645266104.jpg -(114049B / 111.38KB, 595x397) Thumbnail displayed, click image for full size.
>>15281
  1. 25
  2. Finance
  3. Real-Estate Finance
  4. Professional Investor
  5. Having a hot wife that loves me and a large bank account.

I'd also like to point out that your inquiry means very little, as even the smartest of men at one point were nothing.
>>
Doris Bangershaw - Fri, 02 Jun 2017 03:11:28 EST ID:y3TGqPb4 No.15519 Ignore Report Reply
>>15476

>Having a hot wife that loves me and a large bank account.

Women are incapable of love, except for themselves and their biological children.

If you have a sufficiently large bank account, however, you can easily convince one to pretend to love you. That's quite common.


Volume optimization? Ignore Report View Thread Reply
Duffman - Sun, 09 Apr 2017 11:19:17 EST ID:Rhgh4/nK No.15464
File: 1491751157703.jpg -(1028187B / 1004.09KB, 1973x2090) Thumbnail displayed, click image for full size. 1028187
How does one go about doing these problems? are there formulas I'm missing for this? My professor covered this in the last 5 minutes of class and he was pretty unclear.
>>
Henry Mondlechot - Sun, 09 Apr 2017 14:54:04 EST ID:pPgJY+De No.15465 Ignore Report Reply
1491764044751.png -(129384B / 126.35KB, 895x572) Thumbnail displayed, click image for full size.
Does this help?
>>
George Pittway - Sun, 09 Apr 2017 15:00:05 EST ID:Rhgh4/nK No.15466 Ignore Report Reply
>>15465

Yes, Somewhat. Thank you


Ncea Level 3 calculus Help Ignore Report View Thread Reply
David Bellamy - Sun, 26 Mar 2017 03:46:39 EST ID:yAgFpYsL No.15435
File: 1490514399540.png -(1302964B / 1.24MB, 1080x1920) Thumbnail displayed, click image for full size. 1302964
I need help with bloody conics
>>
HazeyNZL - Sun, 26 Mar 2017 04:02:02 EST ID:v+/egmbA No.15436 Ignore Report Reply
1490515322081.jpg -(48706B / 47.56KB, 903x678) Thumbnail displayed, click image for full size.
DICKS EVERYWHERE
>>
Ernest Binningstidge - Sun, 26 Mar 2017 10:59:32 EST ID:KW3RHxlP No.15437 Ignore Report Reply
What have you tried? You can't just come to someone and ask for help without doing anything. We're not going to teach you the whole course here, since there are numerous places online you can learn these things.
>>
Henry Fattingdodge - Tue, 28 Mar 2017 21:15:01 EST ID:AvE/EBRJ No.15438 Ignore Report Reply
Your friend looks like a fag, and underaged, so you probably are twice both. Ask a fucking question next time.


Measuring turds Ignore Report View Thread Reply
Jarvis Smallford - Tue, 21 Mar 2017 20:36:07 EST ID:Yl5i51yi No.15427
File: 1490142967601.png -(88115B / 86.05KB, 1069x828) Thumbnail displayed, click image for full size. 88115
Ever wanted to be able to find the volume of your weirdly-shaped poops through a mathematical model? Try Calculus! Thanks, Newton and Leibniz!
>>
Basil Gunningfutch - Tue, 21 Mar 2017 22:28:39 EST ID:2BTsxPZ9 No.15428 Ignore Report Reply
No love for Archimedes in here I suppose.
>>
Molly Poffingbury - Wed, 22 Mar 2017 19:55:35 EST ID:LCy6AKHb No.15430 Ignore Report Reply
>>15428

Do not disturb my circles.


Maths is cool n shit Ignore Report View Thread Reply
Straid Of Coolaphis - Fri, 28 Oct 2016 20:21:44 EST ID:g2pPf6fA No.15254
File: 1477700504974.jpg -(265201B / 258.99KB, 1403x1600) Thumbnail displayed, click image for full size. 265201
Can we have a maths party thread moderators? Because maths is cool and shit.
8 posts and 4 images omitted. Click View Thread to read.
>>
Archie Cenderhood - Tue, 07 Mar 2017 10:03:55 EST ID:+wJbtIkG No.15416 Ignore Report Reply
>>15415
Have fun remembering fifteen different definitions of some uiversal construction which are all actually the same thing in different categories. Do you enjoy clogging your brain with extraneous nomenclature? (Please, no jokes that this is all that math is.)
>>
Priscilla Brellydale - Tue, 14 Mar 2017 16:56:33 EST ID:0IIhzQOQ No.15417 Ignore Report Reply
So what do you guys think about Hodge theory?
Is the hype over?
>>
Shitting Huddlehan - Thu, 16 Mar 2017 14:35:45 EST ID:vrOFV9fT No.15421 Ignore Report Reply
>>15417

Homology is bullshit, cohomology is bullshit. The only reason people care about that stuff nowadays is for some data analysis purposes, so that means people are interested in actually computing homology groups of spaces rather than this deeper stuff. The only people that care are topology nerds.


Connection between graphs and differential equations Ignore Report View Thread Reply
Jarvis Pessledale - Tue, 14 Mar 2017 17:17:53 EST ID:ueMHQ1BO No.15418
File: 1489526273324.jpg -(103964B / 101.53KB, 1024x768) Thumbnail displayed, click image for full size. 103964
YO WUT IS UP!?
I am curious if anyone knows how to represent differential equations as a graph? I acknowledge that that sounds absurd, but I am curious, I know you can represent a graph via tutte polynomial, so I figured it's not too much of a stretch.
>>
Doris Billingforth - Tue, 14 Mar 2017 17:56:07 EST ID:zpTgkQCY No.15420 Ignore Report Reply
1489528567485.gif -(281744B / 275.14KB, 305x294) Thumbnail displayed, click image for full size.
What do you want exactly? It's not absurd to ask for something as a graph since graphs, like most kinds of mathematical structures, are expressive enough to encode anything you want to do.

A given differential equation will give rise to a dynamical system right? Like if I give you a point the differential equation can tell me the derivative(s) at that point. These derivatives are instantaneous rates of change, but you can imagine for each point in your space following the corresponding tangent vector for a certain time t. If your space is over the reals you will obtain an uncountable family of uncountably infinite combinatorial graphs which vary with t. Maybe you can study the corresponding operators? It looks like the sequence tends to the identity but the way it changes might encode information about your solutions.


Restricted movement Ignore Report View Thread Reply
Ian Cinderworth - Sun, 26 Feb 2017 18:58:58 EST ID:ncb8UBjg No.15412
File: 1488153538709.png -(45484B / 44.42KB, 1152x799) Thumbnail displayed, click image for full size. 45484
I like to ask here, because it's chill here and I the thought of citing /math/ on my bachelor's amuses me.

Pic illustrates a truck with a trailer, reversing in a clockwise circle. The axles are illustrated with a green wheel on the end of each radius.
The axle on the trailer can be steered.
Suppose the wheels on the trailer are turned slightly, creating a new radius and triangle shown in blue.
So after the truck has reversed for a bit, shown in pink, I think the trailer would move like shown, with the triangle intact, dragging it's point C along the "old" radius of the truck rear axle. (Old being the instance where the new angle of the trailer wheels were established)
My questions are: Do I reason correctly? and How does the angle B in the yellow triangle change, according to the trailer wheel angle, the trucks turning circle and distance traveled? You see, I'm interested in the point where yellow A an B are equal.


What do you guys think about this equation?? Ignore Report View Thread Reply
equation - Thu, 16 Feb 2017 21:56:31 EST ID:3CQShUbt No.15337
File: 1487300191718.jpg -(376323B / 367.50KB, 2048x1536) Thumbnail displayed, click image for full size. 376323
DICKS EVERYWHERE
1 posts omitted. Click View Thread to read.
>>
Beatrice Crenningmock - Sun, 19 Feb 2017 01:54:24 EST ID:A2j/BW/W No.15339 Ignore Report Reply
>>15338
And by "you" I mean whoever wrote that troll proof. I was under the impression it was your doing at first, but now I see you're just asking about it.

In that case, and looking at this with fresh eyes, I see that whoever wrote this is confusing (purposefully?) things like 0.7x with 0.7 + x.

0.7x = (7/10)(7/90) = (7*7)/(10*90) = 48/900 =

Whereas, 0.7 + x = 0.7 + 0.0777... = 0.777...

Or, 0.7 + x = 7/10 + 7/90 = 63/90 + 7/90 = 70/90 = 7/9

This confusing of addition with multiplication is the main theme of the "proof". The only things done correctly here are multiplying or dividing equations through by ten and the realization that a number subtracted from itself is zero (the number doesn't need to be infinity for this to work as is stated in the "proof").
>>
Sidney Hummerwedge - Tue, 21 Feb 2017 00:04:06 EST ID:vrOFV9fT No.15340 Ignore Report Reply
>>15337

If you want to deal with things like 0.777 repeating it's best to use a symbol like a, rather than those fucking dots. Everything went wrong after the part in the rectangle in the attached image.
>>
Fucking Grandville - Wed, 22 Feb 2017 00:08:02 EST ID:A2j/BW/W No.15343 Ignore Report Reply
>>15340
English use those dots instead of the vinculum. Chinese do too.


hex calc Ignore Report View Thread Reply
CVF - Sun, 12 Feb 2017 00:53:25 EST ID:zOfzUnva No.15334
File: 1486878805691.jpg -(83985B / 82.02KB, 1280x720) Thumbnail displayed, click image for full size. 83985
good calculator that does hexadecimal? for school?
binary is a plus +
>>
Basil Sinnerdedging - Mon, 13 Feb 2017 19:38:14 EST ID:A2j/BW/W No.15335 Ignore Report Reply
https://www.amazon.com/Texas-Instruments-Engineering-Scientific-Calculator/dp/B004NBZB2Y
>>
Sophie Nennerstet - Mon, 13 Feb 2017 22:35:57 EST ID:ogPDtdlS No.15336 Ignore Report Reply
If it's for a class use what they tell you. Otherwise use a smartphone, laptop, etc. It is what computers were originally made for, after all.


Calc Ignore Report View Thread Reply
Hugh Jass - Tue, 31 Jan 2017 08:38:40 EST ID:Rhgh4/nK No.15328
File: 1485869920510.jpg -(10870B / 10.62KB, 489x93) Thumbnail displayed, click image for full size. 10870
  1. How do I set this problem up?
  2. Do I square the radical term to get rid of it?

The way my prof. writes these problems in a straight line is confusing. Thanks
>>
Basil Gubberway - Tue, 31 Jan 2017 11:54:02 EST ID:A2j/BW/W No.15329 Ignore Report Reply
This is simplification using order of operations, not calculus.

[1/sqrt{1/(9x)}/(2[x^0.5]y)^-1]^-4

[1/(sqrt{1}/sqrt{9x})/(2sqrt{x}y)^-1]^-4

[1/(1/[3sqrt{x}])/(2sqrt{x}y)^-1]^-4

[3sqrt{x}/(2sqrt{x}y)^-1]^-4

[3sqrt{x}*2sqrt{x}y]^-4

[6xy]^-4

1/(1296x^4y^4)

Hopefully that's clear enough. If not, just ask me to explain a step.


Can someone help me? Ignore Report View Thread Reply
Samuel Gagglechick - Sun, 08 Jan 2017 06:01:19 EST ID:QDezsc5/ No.15313
File: 1483873279651.png -(36685B / 35.83KB, 1320x300) Thumbnail displayed, click image for full size. 36685
Anyone?
1 posts omitted. Click View Thread to read.
>>
Cornelius Nittingpidge - Mon, 09 Jan 2017 06:00:40 EST ID:TYRFlDNG No.15317 Ignore Report Reply
1483959640448.jpg -(18924B / 18.48KB, 320x320) Thumbnail displayed, click image for full size.
it's far bro
stay home
>>
Charlotte Ficklepen - Wed, 11 Jan 2017 15:34:25 EST ID:A2j/BW/W No.15320 Ignore Report Reply
Call angle QPX a and angle XPR b. Then you can use the law of cosines (LOC) to determine both a and a+b. Then subtract to get b. Then use LOC to find the length of XR using b. Sorry for the late reply.
>>
Shitting Drussleford - Tue, 17 Jan 2017 19:32:16 EST ID:cHNY4zfv No.15325 Ignore Report Reply
i know this shit seems retarded when you just doin geometry but try to really grasp the concepts cuz advanced math takes this triangle shit and makes some whole other crazy shit happen with circles till you got calc and beyond, all based on triangles, thats why pythagoras was a real OG nigga


Combine Data Sets Values Something Ignore Report View Thread Reply
Doris Bemmlebanks - Mon, 02 Jan 2017 13:27:30 EST ID:RbgW2Zpy No.15304
File: 1483381650547.jpg -(51347B / 50.14KB, 156x518) Thumbnail displayed, click image for full size. 51347
Suppose youve got 2 data sets but they're in completely different units and not on the same scale. What operation could you apply to each row in order to get an idea of their combined result.
Sum? Average? Multiply?
4 posts omitted. Click View Thread to read.
>>
break-a-bond !!D0XjIgKF - Sat, 07 Jan 2017 23:56:11 EST ID:tgwdoW8d No.15312 Ignore Report Reply
>>15311
However!
This does not take into account weighting of each item if that matters at all.
So the forumula would become tedious
0.2*percentile1 + 0.8*percentile2
Then if you change that weighting from 20% -> 30% you're going to have to change every other weighting to add up to 1.
>>
Eugene Gubberfuck - Sun, 08 Jan 2017 18:08:26 EST ID:/4S1D94J No.15316 Ignore Report Reply
>>15310
You cant build a score without context to what the data represents
>>
Edwin Semmlebury - Sun, 22 Jan 2017 22:28:09 EST ID:C8IBIGCT No.15327 Ignore Report Reply
>>15316
Well he just did!
deal wit it


math for CS. Ignore Report View Thread Reply
Fanny Gommerlirk - Sun, 07 Jun 2015 03:58:35 EST ID:8MLIP4Q3 No.14780
File: 1433663915621.jpg -(114090B / 111.42KB, 1021x682) Thumbnail displayed, click image for full size. 114090
I want to polish up some skills, specifically proof by induction, solving relations, and some calc. i think i know where to go for the calc (i learned it from the khan academy like 2 years ago and got a B+ in Calc II) but I can't find anything good for proof by induction or solving relations. i have some old lectures on my HDD but they aren't enough.

should I give in and hire a tutor? there is a top 10 stem school where I live and could get a tutor from physics, math, maybe CS, maybe another field's list but it's expensive.

pic unrelated
7 posts omitted. Click View Thread to read.
>>
Jack Wunderfuck - Sat, 15 Aug 2015 01:52:48 EST ID:PrRFulRY No.14859 Ignore Report Reply
OP here again. I'll be studying calc (I have taken calc before and did fine) and discrete math this fall. im worried about the discrete math. my plan so far is to write down all proofs covered and make sure i learn each one and master it. i want to get close to 100% in this class. what tips to you guys have, beyond keeping at it and seeing prof/TAs regularly with questions?
>>
Fuck Worthingway - Wed, 26 Aug 2015 23:04:36 EST ID:Dk8yywxc No.14867 Ignore Report Reply
>>14859

Make sure you do all of the assigned exercises. Try to do your own proof first on exercises, then look for a result on the internet. Hopefully you will be able to find many of the things you're asked to prove if you can't solve it yourself, but if you look at the result without trying it defeats the exercise of looking for a solution, which might screw you on the exam.

If you are ever lost with anything, work from the definitions and theorems you've used. Often you can solve a difficult problem by breaking something seemingly complicated into its parts, and then using the tools you have on the smaller pieces. The vast majority of professors will only ask you problems that they have previously exposed to you in class, homework, exercises, or at worst from the assigned textbook. If you feel you are struggling and have done all of the exercises and asked for correction from the professor, start doing the rest of the problems from the textbook and look for solutions.

Before you take any exam, at the very least read all of the exercises and questions in the textbook that you have been given. Oftentimes after being initially exposed to an idea without a solution and some time passes, we will be able to find a solution much more quickly than encountering problem without having seen it before.
>>
Sidney Pittbury - Mon, 02 Jan 2017 17:51:19 EST ID:bM58eX3O No.15306 Ignore Report Reply
>>14780
fuk that, pick up a discrete math textbook. Then keep a copy of Advanced Calculus by Patrick Fitzpatrick around. Then whenever something troubles you about calc, look it up in that bby. It has a lot of goodies. In terms of CS numerical recipes contains most of the algorithms a person could ever want to use, code of them in C, and mathematical explanation of why they work.
Cheers and don't use it to build missiles u dingus,
-anon


Crazy Super Golden! Ignore Report View Thread Reply
Barnaby Nicklewill - Wed, 28 Dec 2016 02:20:12 EST ID:RbgW2Zpy No.15300
File: 1482909612562.png -(8830B / 8.62KB, 254x223) Thumbnail displayed, click image for full size. 8830
How does it do it! Nobody knows!
>>
Barnaby Nicklewill - Wed, 28 Dec 2016 02:21:59 EST ID:RbgW2Zpy No.15301 Ignore Report Reply
Also has anyone worked with python's wolframalpha API thing?
>>
Nell Murdway - Fri, 30 Dec 2016 20:27:46 EST ID:i+CEI2Ll No.15302 Ignore Report Reply
See what I wonder is how does that mouth not just munch up the numbers? I mean it looks like their gonna fall right in.
>>
Doris Bemmlebanks - Mon, 02 Jan 2017 13:28:20 EST ID:RbgW2Zpy No.15305 Ignore Report Reply
>>15302
These are the questions that keep mathematicians up at night.


<<Last Pages Next>>
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Report Post
Reason
Note
Please be descriptive with report notes,
this helps staff resolve issues quicker.